I'm a big fan of sponges and wish I could keep more in my tank, but most don't survive in aquariums. So I'd love to see a couple of pictures of this sponge. Heck, I might even want some of it! LOL!
Dkuhlmann is right about MOST sponges dying if exposed to air for even a few seconds, but not all. Sponges take in water through small pores in their surface. Then they filter out organics for food and expel the old water out bigger 'vent holes'. If exposed to air, it gets in the surface pores and when back in the water it can't clear out the air and then it can't take in new water either. So it starves and over days, weeks and sometimes even months it will die off and waste away.
However, a friend of mine didn't know this. And while walking a beach here in Florida after a storm he found a beautiful red branching sponge washed up. So he took it home in a bucket of water (he was collecting other critters that had washed up from the storm). Not only has it survived for months, it's growing and it's drop dead gorgeous! I have a photo on my phone, but getting it to my computer is more about luck than skill... OK, lack of skill AND knowledge!
Today would be the perfect day to do an after storm beach walk (Hermine just passed by causing 30+ mph winds from the SW yesterday). But I'm recovering from a 180g tank failure and have WAY too much work to do getting my new tank build going so I can save as many of my corals as possible.